Improvement in feeding apparatus for rolling-mills



A. L.. HOLLBY. Feeding Apparatus for Rolling-Mills. No.2l5,360.

Patented May 13, 1879.

fibn or N-FETERS, PRUTO-L|THOGRAPHER, WASHINGTON. D C.

UNITED STATES PATENT QFFIOE.

ALEXANDER L. HOLLEY, on NEW YORK, N. Y.

IMPROVEMENT IN FEEDING APPARATUS FOR ROLLING- MILLS.

Specification forming part of Letters Patent N0. 215,360, dated May 13, 1879; application filed December 11, 1878.

justable frame carrying two feeding-rollers connected by driving-gear, which imparts simultaneous movement to said rollers, to adapt wthe apparatus for feeding either long or short pieces, as hereinafter described.

My invention further consists in the combination, with a lifting-table, and a roller-frame, and driven feed-rollers, of a steam-cylinder, for raising, lowering, or pressing down said feed-roller frame, as hereinafter described.

In order that my invention may be fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure l is a side elevation, and Fig.2 a partial front view, of my improvements adapted for raising the piece over the top roll of an ordinary two-high plate-train.

Q represents the said top roll. Over the lifting-table J, I place two feed-rollers, K and L, which are mounted in a frame, F, and may be driven in rany suitable manner. I show them driven by means of an intermediate gear and belt, M.

Two feed rollers are desirable in a platetrain for the following reasons: A very short slab on the extreme inner end of the table would require the feed roller K to be placed over the extreme end of. the table, while a slab or plate might be thrown so far out upon the table that the feed-roller K might not hit it, and the roller L would be necessary to feed it.

The feed-rollers may be guided to move up and down parallel to the table by means of guides N.

In case it should be desirable not to begin feeding the piece until after the table is up, or in case it should be preferred to press the feed-roller down upon the piece by power rather than its weight, I have provided a piston, O, which may be operated in the cylinder P by water, air, or steam, and serves to raise and lower the feed-rollers and to apply pressure thereto at the will of the operator when the lifting-table is at any height.

It is obvious that the starting and stopping of the feeding may be done by operating the feed-roller by means of a clutch or equivalent.

I am aware that a single driven feed-roller vertically adjustable has before been used. This, therefore, I do not broadly claim.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. The combination, with the vertically-adjustable lifting-table J, of the frame F, the connected feeding-rollers K L, mounted in said frame, and mechanism for imparting simultaneous motion to thesaid feeding-rollers,

to adapt the apparatus to feed either long or short pieces, in the manner described.

2. The combination of a vertically adjustable liftingtable, J, a vertically -adjustable frame, F, carrying feeding-rollers K L, and a steam-piston, O, for raising, lowering, and applyingpressure to the said feeding-roller frame, as described.

A. L. HOLLEY.

Witnesses GRAM CURTIS, L. G. LAUREAU. 

